QtWeb Internet Browser - lightweight, secure and portable browser having unique user interface and privacy features. QtWeb is an open source project based on Nokia's Qt framework and Apple's WebKit rendering engine (the same as being used in Apple Safari and Google Chrome).

In a normal case when navigate to a site, the browser shows real URL But it has a weakness and a attacker can show a empty URL. This weakness can be used for pishing or spoof attacks because you can think that you are in bank of america for example and the browser don't show nothing in URL:)

Whithout Any URL

Also a attacker can compose a popup with atributes and it can be used too for spoof or phishing attacks. toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0